I don't think they'll happen unless a government adopts one and there's no incentive for that. Most developed nations treat them like a security (investment) w

I don't think they'll happen unless a government adopts one and there's no incentive for that. Most developed nations treat them like a security (investment) which makes them useless for daily transactions. You're supposed to track capital gains and losses. Throw in something the the wash rule the US has and you can see how it becomes impossible to use them as a currency without getting into tax trouble. Heck, I think the IRS even expects people to declare gains when they mine a coin. I'm not American though, so I've never really looked into it. I don't have any crypto either, so...